Originally Posted By: Johnny2Bad
As far as I know, the only way to insure high oil pressure at startup is with an oil accumulator (Moroso, etc). It pressurizes the oil system *before* startup.
I don't know if it's necessary; there should be enough residual oil at bearing points for almost no wear for startup and low RPM operation for brief periods. Engine starts do wear more than pressurized operation, but it's low enough that motors last ... well, as long as they last. Maybe an option if you are looking to keep the vehicle forever and are looking to extend engine life beyond, say, 200,000 mi.
The way BITOG members are, most of our vehicles will rust out or eventually devalue to near nothing before the engines wear out. E.g. 513k miles on a Civic. Unless the previous owners didn't care for it, or the engine design has a major fault.
Originally Posted By: demarpaint
I can't for the life of me figure out why anyone that knows about cars and does their own work wouldn't pre-fill the filter if the position of the filter on the engine allows doing so.
Amen to that. But I always consider the opposite point of view, just to be fair and level-headed... so... those who don't pre-fill their new oil filters probably don't see the point in spending the extra 30 seconds when it provides no real-world benefit. Also the full oil filter requires extra care handling it up to the mounting base, and spinning it to install, all without spilling. Not too hard for me but of course I have mad skilz
I pre-fill my new oil filters because it's quick and easy, because both my vehicles have vertical-mounted oil filters, and because I really like to see the oil light go out almost instantly after doing an oil change.